JP4033066B2 - 周波数制御装置、情報処理装置、周波数制御方法及びプログラム - Google Patents

周波数制御装置、情報処理装置、周波数制御方法及びプログラム Download PDF

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Publication number
JP4033066B2
JP4033066B2 JP2003272333A JP2003272333A JP4033066B2 JP 4033066 B2 JP4033066 B2 JP 4033066B2 JP 2003272333 A JP2003272333 A JP 2003272333A JP 2003272333 A JP2003272333 A JP 2003272333A JP 4033066 B2 JP4033066 B2 JP 4033066B2
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JP
Japan
Prior art keywords
frequency
clock signal
value
target
program
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Expired - Fee Related
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JP2003272333A
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English (en)
Japanese (ja)
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JP2004355599A (ja
Inventor
健 下山
哲正 目黒
努 寺西
靖郎 中野
博和 河原
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Sony Corp
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Sony Corp
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Priority to JP2003272333A priority Critical patent/JP4033066B2/ja
Priority to TW093105387A priority patent/TWI291086B/zh
Priority to US10/552,897 priority patent/US7356726B2/en
Priority to PCT/JP2004/006517 priority patent/WO2004100370A2/fr
Priority to EP04731774A priority patent/EP1620782A2/fr
Priority to KR1020057020967A priority patent/KR20060008983A/ko
Publication of JP2004355599A publication Critical patent/JP2004355599A/ja
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Publication of JP4033066B2 publication Critical patent/JP4033066B2/ja
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/324—Power saving characterised by the action undertaken by lowering clock frequency
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/07—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop using several loops, e.g. for redundant clock signal generation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Sources (AREA)
  • Testing And Monitoring For Control Systems (AREA)
JP2003272333A 2003-05-07 2003-07-09 周波数制御装置、情報処理装置、周波数制御方法及びプログラム Expired - Fee Related JP4033066B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2003272333A JP4033066B2 (ja) 2003-05-07 2003-07-09 周波数制御装置、情報処理装置、周波数制御方法及びプログラム
TW093105387A TWI291086B (en) 2003-05-07 2004-03-02 Frequency control apparatus and information processing apparatus
US10/552,897 US7356726B2 (en) 2003-05-07 2004-05-07 Frequency control apparatus for controlling the operation frequency of an object
PCT/JP2004/006517 WO2004100370A2 (fr) 2003-05-07 2004-05-07 Dispositif de commande de frequence, dispositif et programme de traitement de l'information
EP04731774A EP1620782A2 (fr) 2003-05-07 2004-05-07 Dispositif de commande de frequence, dispositif et programme de traitement de l'information
KR1020057020967A KR20060008983A (ko) 2003-05-07 2004-05-07 주파수 제어 장치, 정보 처리 장치 및 프로그램

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003129219 2003-05-07
JP2003272333A JP4033066B2 (ja) 2003-05-07 2003-07-09 周波数制御装置、情報処理装置、周波数制御方法及びプログラム

Publications (2)

Publication Number Publication Date
JP2004355599A JP2004355599A (ja) 2004-12-16
JP4033066B2 true JP4033066B2 (ja) 2008-01-16

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JP2003272333A Expired - Fee Related JP4033066B2 (ja) 2003-05-07 2003-07-09 周波数制御装置、情報処理装置、周波数制御方法及びプログラム

Country Status (6)

Country Link
US (1) US7356726B2 (fr)
EP (1) EP1620782A2 (fr)
JP (1) JP4033066B2 (fr)
KR (1) KR20060008983A (fr)
TW (1) TWI291086B (fr)
WO (1) WO2004100370A2 (fr)

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Also Published As

Publication number Publication date
KR20060008983A (ko) 2006-01-27
US7356726B2 (en) 2008-04-08
EP1620782A2 (fr) 2006-02-01
TWI291086B (en) 2007-12-11
WO2004100370A3 (fr) 2005-02-24
WO2004100370A2 (fr) 2004-11-18
US20060212247A1 (en) 2006-09-21
TW200426557A (en) 2004-12-01
JP2004355599A (ja) 2004-12-16

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